<template>
  <div class="login-container">
    <el-form label-width="120px">
      <el-form-item label="讲师名称">
        <el-input v-model="teacher.name" />
      </el-form-item>
      <el-form-item label="讲师排序">
        <el-input-number
          v-model="teacher.sort"
          controls-position="right"
          :min="0"
          :max="10"
        >
        </el-input-number>
      </el-form-item>
      <el-form-item label="讲师头衔">
        <el-select v-model="teacher.level" clearable placeholder="请选择">
          <!--
        数据类型一定要和取出的json中的一致，否则没法回填
        因此，这里value使用动态绑定的值，保证其数据类型是number
        -->
          <el-option :value="1" label="高级讲师" />
          <el-option :value="2" label="首席讲师" />
        </el-select>
      </el-form-item>
      <el-form-item label="讲师资历">
        <el-input v-model="teacher.career" />
      </el-form-item>
      <el-form-item label="讲师简介">
        <el-input v-model="teacher.intro" :rows="10" type="textarea" />
      </el-form-item>
      <!-- 讲师头像： TODO -->
      <!-- 讲师头像 -->
      <el-form-item label="讲师头像">
        <!-- 头衔缩略图 -->
        <pan-thumb :image="teacher.avatar" />
        <!-- 文件上传按钮 -->
        <el-button
          type="primary"
          icon="el-icon-upload"
          @click="imagecropperShow = true"
          >更换头像
        </el-button>
        <!--
        v-show：是否显示上传组件
        :key：类似于id，如果一个页面多个图片上传控件，可以做区分
        :url：后台上传的url地址
        @close：关闭上传组件
        @crop-upload-success：上传成功后的回调 -->
        <image-cropper
          v-show="imagecropperShow"
          :width="300"
          :height="300"
          :key="imagecropperKey"
          :url="BASE_API3 + '/eduoss/file'"
          field="file"
          @close="close"
          @crop-upload-success="cropSuccess"
        />
      </el-form-item>
      
      <el-form-item>
        <el-button
          :disabled="saveBtnDisabled"
          type="primary"
          @click="addOrUpdate"
          >保存</el-button
        >
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import {
  addTeacher,
  getTeacherInfo,
  updateTeacher,
} from "@/api/teacher/teacher.js";
import ImageCropper from '@/components/ImageCropper'
import PanThumb from '@/components/PanThumb'
import {reBaseURL} from '@/utils/request'

export default {
  components:{ImageCropper,PanThumb},
  data() {
    return {
      teacher: {
        name: "",
        sort: 0,
        level: 1,
        career: "",
        intro: "",
        avatar: "",
      },
      //弹框是否显示
      imagecropperShow:false,
      imagecropperKey:0,
      BASE_API3:"",

      saveBtnDisabled: false, //保存按钮是否禁用
    };
  },
  created() {
    this.BASE_API3 = reBaseURL()
    if (this.$route.params && this.$route.params.id) {
      const id = this.$route.params.id;
      this.getTeacher(id);
    }
  },
  methods: {
    //是否是修改
    addOrUpdate() {
      this.saveBtnDisabled = true;
      if (!this.teacher.id) {
        this.addTeacherInfo();
      } else {
        this.updateTeacherInfo(this.teacher.id);
      }
    },

    //添加讲师
    addTeacherInfo() {
      addTeacher(this.teacher)
        .then((res) => {
          this.$message({
            type: "success",
            message: `添加成功`,
          });
          this.$router.push({ path: "/teacher/teacherlist" });
        })
        .catch((err) => {
          this.$message({
            type: "error",
            message: "添加失败",
          });
        });
    },
    //根据id查询讲师
    getTeacher(id) {
      getTeacherInfo(id)
        .then((res) => {
          this.teacher = res.data.item;
        })
        .catch((err) => {
          this.$message({
            type: "error",
            message: "获取数据失败",
          });
        });
    },

    //修改讲师
    updateTeacherInfo(id) {
      updateTeacher(id, this.teacher)
        .then((res) => {
          this.$message({
            type: "success",
            message: `修改成功`,
          });
          this.$router.push({ path: "/teacher/teacherlist" });
        })
        .catch((err) => {
          this.$message({
            type: "error",
            message: "修改失败",
          });
        });
    },

    //头像:
    close(){
      this.imagecropperShow = false
      // 上传失败后，重新打开上传组件时初始化组件，否则显示上一次的上传结果
      this.imagecropperKey = this.imagecropperKey + 1
    },
    //上传成功
    cropSuccess(data){
      this.imagecropperShow = false
      this.teacher.avatar = data.url
      // 上传成功后，重新打开上传组件时初始化组件，否则显示上一次的上传结果
      this.imagecropperKey = this.imagecropperKey + 1
    },
  },
};
</script>

<style>
</style>